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The frequency constraint can directly set in the GD Scenario:
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Frequency Constraint
The Frequency Constraint (in Hz) is the target for the first occurring eigenfrequency of the part. Per default the first 10 eigenfrequencies in a range up to 3 times the frequency constraint value are considered. Based on these eigenmodes the part is stiffened to push the the first eigenfrequency upwards.
As an optional input the range and the number of frequencies which are taken into account for the optimisation can be modified with the Advanced User Settings.
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Symmetry and a Frequency Event cannot be set up together. Some of the Eigenfrequency modes will be asymmetric. |
Frequency Constraint
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If the Frequency Constraint is higher than the first calculated Eigenfrequency of the whole Design Space in the first Iteration, this can lead to the case that no material will be reduced. This can be resolved by reducing the Frequency Constraint or by entering the following command to the Advanced User Settings: |
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